HEADER IMMUNOSUPPRESSANT 23-MAR-22 7ZBF TITLE CRYSTAL STRUCTURE OF NATIVE IRIPIN-4 SERPIN FROM TICK IXODES RICINUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: IRIPIN-4 SERPIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PUTATIVE SALIVARY SERPIN; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: IXODES RICINUS; SOURCE 3 ORGANISM_COMMON: CASTOR BEAN TICK; SOURCE 4 ORGANISM_TAXID: 34613; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS IXODES RICINUS, IRIPIN-4, CRYSTAL, NATIVE CONFORMATION, SERPIN, KEYWDS 2 IMMUNOSUPPRESSANT EXPDTA X-RAY DIFFRACTION AUTHOR B.KASCAKOVA,I.KUTA SMATANOVA,J.CHMELAR,T.PRUDNIKOVA REVDAT 4 07-FEB-24 7ZBF 1 REMARK REVDAT 3 17-MAY-23 7ZBF 1 JRNL REVDAT 2 03-MAY-23 7ZBF 1 JRNL REVDAT 1 05-APR-23 7ZBF 0 JRNL AUTH B.KASCAKOVA,J.KOTAL,P.HAVLICKOVA,V.VOPATKOVA,T.PRUDNIKOVA, JRNL AUTH 2 P.GRINKEVICH,M.KUTY,J.CHMELAR,I.KUTA SMATANOVA JRNL TITL CONFORMATIONAL TRANSITION OF THE IXODES RICINUS SALIVARY JRNL TITL 2 SERPIN IRIPIN-4. JRNL REF ACTA CRYSTALLOGR D STRUCT V. 79 409 2023 JRNL REF 2 BIOL JRNL REFN ISSN 2059-7983 JRNL PMID 37092969 JRNL DOI 10.1107/S2059798323002322 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0267 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 44.62 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 18404 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.200 REMARK 3 R VALUE (WORKING SET) : 0.197 REMARK 3 FREE R VALUE : 0.251 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 969 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.36 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1340 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.37 REMARK 3 BIN R VALUE (WORKING SET) : 0.2340 REMARK 3 BIN FREE R VALUE SET COUNT : 70 REMARK 3 BIN FREE R VALUE : 0.2710 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2962 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 196 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 39.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.90000 REMARK 3 B22 (A**2) : -0.90000 REMARK 3 B33 (A**2) : 2.93000 REMARK 3 B12 (A**2) : -0.45000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.343 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.244 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.185 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.685 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.949 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.897 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 3019 ; 0.007 ; 0.013 REMARK 3 BOND LENGTHS OTHERS (A): 2905 ; 0.001 ; 0.015 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 4094 ; 1.445 ; 1.635 REMARK 3 BOND ANGLES OTHERS (DEGREES): 6663 ; 1.247 ; 1.576 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 375 ; 7.790 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 161 ;30.976 ;21.988 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 518 ;12.019 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 21 ;18.496 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 405 ; 0.060 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 3417 ; 0.006 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 705 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 7ZBF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 23-MAR-22. REMARK 100 THE DEPOSITION ID IS D_1292121909. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-DEC-20 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : BESSY REMARK 200 BEAMLINE : 14.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9184 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19373 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 44.620 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 200 DATA REDUNDANCY : 14.96 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 22.4700 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.44 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 4.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 3NDA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 51.33 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.53 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25 % W/V POLYETHYLENE GLYCOL 3,350, REMARK 280 100 MM BIS-TRIS, 200 MM SODIUM CHLORIDE, PH 5.5, VAPOR DIFFUSION, REMARK 280 SITTING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 39.26000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 78.52000 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 78.52000 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 39.26000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 100 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 16660 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -7.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 NI NI A 401 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 669 LIES ON A SPECIAL POSITION. REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OD2 ASP A 219 O HOH A 501 2.14 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 PHE A 30 118.71 -162.43 REMARK 500 ASP A 65 34.19 73.86 REMARK 500 ASP A 69 4.31 -69.90 REMARK 500 PRO A 156 151.87 -49.79 REMARK 500 ASN A 292 -48.97 -133.18 REMARK 500 ASP A 307 54.42 -153.42 REMARK 500 VAL A 344 -50.87 -121.75 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 696 DISTANCE = 6.29 ANGSTROMS REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NI A 401 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 253 NE2 REMARK 620 2 HIS A 253 NE2 0.0 REMARK 620 3 ASP A 257 OD2 91.4 91.4 REMARK 620 4 ASP A 257 OD2 91.4 91.4 0.0 REMARK 620 N 1 2 3 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 7ZAS RELATED DB: PDB REMARK 900 7ZAS CONTAINS THE SAME PROTEIN IN DIFFERENT STRUCTURAL CONFORMATION DBREF1 7ZBF A 1 376 UNP A0A0K8RJV9_IXORI DBREF2 7ZBF A A0A0K8RJV9 17 392 SEQADV 7ZBF GLN A 78 UNP A0A0K8RJV HIS 94 VARIANT SEQADV 7ZBF GLU A 155 UNP A0A0K8RJV GLY 171 VARIANT SEQADV 7ZBF ASP A 307 UNP A0A0K8RJV GLY 323 VARIANT SEQRES 1 A 376 LEU HIS GLU ASP ARG LEU THR LEU ALA ASN ASN ARG PHE SEQRES 2 A 376 ALA ILE SER LEU LEU HIS ASN LEU PRO THR SER THR GLU SEQRES 3 A 376 THR ASN ILE PHE PHE SER PRO TYR SER ILE SER VAL ALA SEQRES 4 A 376 LEU GLY MET ALA PHE ALA GLY ALA ARG GLY GLU THR ARG SEQRES 5 A 376 GLU ASP LEU PHE GLN GLY PHE GLY TYR PRO ARG SER ASP SEQRES 6 A 376 ILE ASP ASP ASP ALA VAL LEU GLU ALA TYR ALA SER GLN SEQRES 7 A 376 THR ARG ARG LEU LYS SER LEU ARG SER ASN SER THR LEU SEQRES 8 A 376 ASP ALA ALA ILE GLY ALA ALA ILE HIS GLU ARG ILE SER SEQRES 9 A 376 LEU LEU SER SER PHE GLU ASP VAL LEU ASN ASN SER PHE SEQRES 10 A 376 GLY ALA ASP ILE LEU LYS VAL ASP PHE ILE ASN GLY GLY SEQRES 11 A 376 GLN ALA ALA VAL ASP VAL ILE ASN GLY TRP VAL HIS ARG SEQRES 12 A 376 LYS THR ARG GLY LYS ILE ASN LEU LEU PHE GLY GLU PRO SEQRES 13 A 376 LEU GLU THR ILE ILE ARG LEU VAL LEU LEU ASN ALA ILE SEQRES 14 A 376 TYR PHE LYS GLY THR TRP ASP THR VAL PHE ASP GLN ARG SEQRES 15 A 376 LEU THR THR LYS LYS PRO PHE MET ASN ALA CYS SER THR SEQRES 16 A 376 PRO THR GLU VAL ASP THR MET ARG GLY GLU VAL TYR VAL SEQRES 17 A 376 ARG HIS LYS SER PHE PRO LEU LEU GLY VAL ASP ILE ALA SEQRES 18 A 376 GLU ILE PRO TYR ARG GLY MET ASP TYR SER MET THR ILE SEQRES 19 A 376 LEU LEU PRO THR ARG ILE ASP GLY ALA GLU VAL LEU LYS SEQRES 20 A 376 ARG ASN ILE THR GLU HIS LEU LEU GLN ASP LEU VAL LYS SEQRES 21 A 376 GLN LEU VAL GLU GLN GLN VAL THR VAL TYR LEU PRO LYS SEQRES 22 A 376 PHE LYS LEU GLU THR GLU TYR LEU LEU LYS ASP HIS LEU SEQRES 23 A 376 LYS LYS LEU GLY ILE ASN ARG ILE PHE GLY SER GLY ALA SEQRES 24 A 376 ASP PHE SER GLY ILE THR HIS ASP ALA ASN LEU ALA VAL SEQRES 25 A 376 SER ASP VAL VAL HIS LYS THR VAL LEU GLU VAL HIS GLU SEQRES 26 A 376 ALA GLY THR GLU ALA ALA GLY ALA THR GLY VAL ILE ILE SEQRES 27 A 376 VAL ALA GLU SER LEU VAL GLU SER VAL GLU PHE ARG VAL SEQRES 28 A 376 ASP HIS PRO PHE ILE PHE PHE ILE ARG ASN THR GLN THR SEQRES 29 A 376 LYS ASP ILE LEU PHE VAL GLY GLN VAL ASN HIS LEU HET NI A 401 1 HETNAM NI NICKEL (II) ION FORMUL 2 NI NI 2+ FORMUL 3 HOH *196(H2 O) HELIX 1 AA1 GLU A 3 LEU A 21 1 19 HELIX 2 AA2 SER A 32 ALA A 47 1 16 HELIX 3 AA3 ARG A 48 GLY A 60 1 13 HELIX 4 AA4 TYR A 61 ASP A 65 5 5 HELIX 5 AA5 ASP A 67 ASP A 69 5 3 HELIX 6 AA6 ALA A 70 LYS A 83 1 14 HELIX 7 AA7 LEU A 106 GLY A 118 1 13 HELIX 8 AA8 GLY A 129 THR A 145 1 17 HELIX 9 AA9 ASP A 180 THR A 184 5 5 HELIX 10 AB1 GLY A 242 ILE A 250 1 9 HELIX 11 AB2 THR A 251 LYS A 260 1 10 HELIX 12 AB3 LEU A 282 LYS A 288 1 7 HELIX 13 AB4 ASN A 292 GLY A 296 5 5 SHEET 1 AA1 7 ILE A 29 PHE A 31 0 SHEET 2 AA1 7 ILE A 367 VAL A 373 -1 O GLN A 372 N ILE A 29 SHEET 3 AA1 7 PHE A 355 ASN A 361 -1 N PHE A 357 O GLY A 371 SHEET 4 AA1 7 TYR A 230 PRO A 237 -1 N LEU A 235 O ILE A 356 SHEET 5 AA1 7 VAL A 218 PRO A 224 -1 N ILE A 223 O MET A 232 SHEET 6 AA1 7 PRO A 196 PHE A 213 -1 N ARG A 209 O GLU A 222 SHEET 7 AA1 7 THR A 185 MET A 190 -1 N THR A 185 O THR A 201 SHEET 1 AA2 8 ILE A 29 PHE A 31 0 SHEET 2 AA2 8 ILE A 367 VAL A 373 -1 O GLN A 372 N ILE A 29 SHEET 3 AA2 8 PHE A 355 ASN A 361 -1 N PHE A 357 O GLY A 371 SHEET 4 AA2 8 TYR A 230 PRO A 237 -1 N LEU A 235 O ILE A 356 SHEET 5 AA2 8 VAL A 218 PRO A 224 -1 N ILE A 223 O MET A 232 SHEET 6 AA2 8 PRO A 196 PHE A 213 -1 N ARG A 209 O GLU A 222 SHEET 7 AA2 8 VAL A 263 PRO A 272 -1 O VAL A 263 N HIS A 210 SHEET 8 AA2 8 VAL A 347 ARG A 350 1 O VAL A 347 N THR A 268 SHEET 1 AA3 5 ASP A 120 VAL A 124 0 SHEET 2 AA3 5 THR A 90 HIS A 100 1 N ILE A 95 O ASP A 120 SHEET 3 AA3 5 LEU A 163 LYS A 172 -1 O ALA A 168 N ALA A 94 SHEET 4 AA3 5 VAL A 315 GLU A 322 1 O VAL A 316 N LEU A 165 SHEET 5 AA3 5 LYS A 275 LEU A 281 -1 N TYR A 280 O HIS A 317 LINK NE2 HIS A 253 NI NI A 401 1555 1555 1.90 LINK NE2 HIS A 253 NI NI A 401 1555 5554 1.90 LINK OD2 ASP A 257 NI NI A 401 1555 1555 2.40 LINK OD2 ASP A 257 NI NI A 401 1555 5554 2.40 CRYST1 78.932 78.932 117.780 90.00 90.00 120.00 P 31 2 1 6 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.012669 0.007315 0.000000 0.00000 SCALE2 0.000000 0.014629 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008490 0.00000